<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <input id="inputFile" type="file" />
    <script>
      const inputFile = document.querySelector("#inputFile");
      inputFile.onchange = (e) => {
        const [file] = e.target.files;
        const formData = new FormData();
        // 方法：POST 地址 ："https://autumnfish.cn/api/form/upload" 数据是一个 formData
      };
    </script>
  </body>
</html>
